// Copyright (C) Kumo inc. and its affiliates.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//
#pragma once

#include <melon/thread_local.h>
#include <pollux/serializers/presto_serializer.h>
#include <pollux/vector/vector_stream.h>

namespace kumo::pollux::serializer::presto::detail {
    class PrestoBatchVectorSerializer : public BatchVectorSerializer {
    public:
        PrestoBatchVectorSerializer(
            memory::MemoryPool *pool,
            const PrestoVectorSerde::PrestoOptions &opts)
            : pool_(pool),
              codec_(common::compressionKindToCodec(opts.compressionKind)),
              opts_(opts) {
        }

        void serialize(
            const RowVectorPtr &vector,
            const melon::Range<const IndexRange *> &ranges,
            Scratch &scratch,
            OutputStream *stream) override;

        void estimateSerializedSize(
            VectorPtr vector,
            const melon::Range<const IndexRange *> &ranges,
            vector_size_t **sizes,
            Scratch &scratch) override {
            estimateSerializedSizeImpl(vector, ranges, sizes, scratch);
        }

    private:
        void estimateSerializedSizeImpl(
            const VectorPtr &vector,
            const melon::Range<const IndexRange *> &ranges,
            vector_size_t **sizes,
            Scratch &scratch);

        memory::MemoryPool *const pool_;
        const std::unique_ptr<melon::compression::Codec> codec_;
        const PrestoVectorSerde::PrestoOptions opts_;
        // Used to protect against concurrent calls to serailize which can lead to
        // concurrency bugs.
        std::atomic_bool inUse{false};
    };
} // namespace kumo::pollux::serializer::presto::detail
